5–1.5°C), the new metabolic process regarding cunner counted during day-and-night within 0.6 ± 0.2°C was not notably unlike that counted when you look at the first two days away from coverage at the same temperatures (contour 3).
Profile 3. Changes in daytime and you can night-go out metabolic rates ( ) off cunner (n = 6) from the 0.6 ± 0.2°C, after per month connection with winter months dormancy standards (0.5–1.5°C, eleven L : thirteen D photoperiod). Investigation are displayed while the portion of the brand new mentioned in the exact same fish in initially 0–2 days away from exposure to 0.six ± 0.2°C. There had been zero tall alterations in shortly after 30 days out-of dormancy. Analysis try means ± s.age.yards.
Our salient discovery was that the low metabolic rate that is characteristic of winter dormancy in cunner does not arise from metabolic rate depression, but rather from the striking reduction in activity between active and dormant states combined with the passive physico-chemical effects of cold on SMR. When variation in spontaneous movements between active and dormant states is controlled for by making comparisons of metabolic rate during night when activity was minimal (figures 1b,c and 2b), or when activity was known to be zero in both states (figure 2b,c), the acute thermal sensitivity (Qten) of metabolic rate of 2.8–3.2 showed typical passive thermal effects on metabolism (Q10 ? 2–3 ).Read More